Leverage Ratio Over Time
Leverage Ratio Northern Trust Bank Of California National Association All Insured Commercial Banks in California
09-30-2006 9.38 14.826
06-30-2006 9.08 13.646
03-31-2006 9.65 13.439
12-31-2005 9.34 13.56
09-30-2005 8.89 12.665
06-30-2005 8.67 12.23
03-31-2005 8.34 11.663
12-31-2004 8.32 11.123
09-30-2004 8.19 11.075
06-30-2004 8.3 11.204
03-31-2004 8.23 11.443
12-31-2003 8.1 11.115
09-30-2003 8.16 10.276
06-30-2003 8.15 10.197
03-31-2003 8.29 9.955
12-31-2002 8.04 9.93